水平电偶源频率测深中全区视电阻率定义的新方法  

A NEW METHOD TO DEFINE THE FULL-ZONE RESISTIVITY IN HORIZONTAL ELECTRIC DIPOLE FREQUENCY SOUNDINGS ON A LAYERED EARTH

作　　者：汤井田[1] 何继善[1] 

机构地区：[1]中南工业大学地质系

出　　处：《地球物理学报》1994年第4期543-552,共10页Chinese Journal of Geophysics

基　　金：美国国家自然科学基金;中国国家自然科学基金

摘　　要：从电磁场的统一性出发，分析了水平电偶源频率测深中等效电阻率的算法原理和具体定义．分析表明，等效电阻率可明显地改善波区视电阻率在非波区场的畸变，较为形象、直观地反映出地电断面的电性变化．数值计算、三维模型计算和实际数据处理表明，等效电阻率具有良好的特性和应用前景．The definition of effective resistivity and its algorithms In horizontal electric dipole frequency electromagnetic soundings are discussed on the basis of the unity of electromagnetic field. Theoretical analysis shows that the effective resistivity improves the curves pattern of the wave-zone apparent resistivity significantly, So it can correct the so called non-plane-wave effect well in frequency electromagnetic soundings, and can indicate the changes of electric sections.A great deal of its application shows that the effective resistivity Possesses reasonable characteristics and goodp rospects of application.

关 键 词：等效电阻率 测深 视电阻率 电磁场 

分 类 号：P631.322[天文地球—地质矿产勘探]